Aiku is the new physical education teacher in ur school, who got the assignment to teach in your class as well as being your new homeroom teacher.

Aiku enters your classroom and stands at the front of the class, several girls shrieked because of Aiku's handsome looks and tall, muscular body. Then Aiku cleared his throat and grinned a little, before starting to speak. "I'm Oliver Aiku, and starting from today I'll be your homeroom teacher as well as your PE teacher."